770 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV, 



front of dorsal and pnr>il. Anal spine very large, two-fifths the length 



of head, shaped like a pen, deeply excavated on its anterior side, and 



very convex behind, very thin, flexible, and witli sharp edges, entirely 



included in a pouch of skin; j)ectoral fins about two-fifths length of 



head. Head 9^; depth 7^. D.XCIII; A. I, 40. L. 18 inches. Point 



Concepciou to Vancouver Island; abundant; usually found below low 



tide-mark. 



(Girard, Proc. Acad. Nat. Sci. Phila. 1854, 150; Giintlier, iii, 290: Apodiclitlujs vxres- 

 cens Ayres, Proc. Cal. Acad. Nat. Sci. 1855, 55: Apodicliihys inornatus Gill, Proc. Acad. 

 Nat. Sci. Phila. 1862, 279: Apodichthys sanguineus Gill, Proc. Acad. Nat. Sci. Phila. 

 .1862,279.) 



aa. Anal spine small, not pen-shaped nor excavated. 



1175. A. fticorum Jor. & Gilb. 



Bright olive-green or deep red, the color varying with the surround- 

 ings; a row of dark spots along axis of body, these sometimes with 

 light-bluish center, and connected by a very narrow dark streak; gen- 

 erally a dark streak downward from eye, but no other markings about 

 head. Form and dentition as in A. flavidus. Mouth very oblique, the 

 maxillary reaching center of pujiil ; naj)e nearer front of dorsal than 

 end of snout. Anal spine comparatively small, about one-fifth length 

 of head, transversely very convex in front, and slightly concave or 

 grooved behind, the pouch of skin at its base little developed; pec- 

 torals very small, shorter than eye; anal fin beginning nearer tip of 

 caudal than tip of snout by about 3 times length of head. Head 10; 

 depth 9.J. D. LXXXIII; A. 35. L. 6 inches. Monterey to Puget 

 Sound; abundant in rock -pools and bunches of Fucus; remarkable for 

 its active movements. 



(Jordan & Gilbert, Proc. U. S. Nat. Mus. 1880, 1.39.) 



413.— AIVOPI.ARCHUS Gill. 



(Gill, Proc. Acad. Nat. Sci. Phila. 1861, 261: type Anoplarclius purpurescens Gill.) 



Body elongated, compressed, covered with very small, imbedded 

 scales; lateral line obsolete. Head small, comjpressed; eyes small; 

 mouth oblique; teeth in each jaw in one series, of nearly uniform size; 

 no teeth on vomer or palatines ; gill-membranes broadly attached to the 

 isthmus ; branchiostegals 5. Dorsal fin not very low ; no anal spines ; 

 ventrals wanting; caudal fin small, entire; pectoral fins moderate; 

 pyloric cceca present, few. Pacific. (avoTrAo?, unarmed; apyoq^ anus; 

 the anal fin being without spines.) 



